Answered: Can you identify 3 statistical…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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At Roxbury Community College, 7 out of every 10 students take introduction to Statistics. If there are 2500 students at RCC, how many take intro To Statistics?
Last week a gumball machine dispensed 10 white gumballs and 16 other gumballs. Considering this data, how many of the next 78 gumballs dispensed should you expect to be white gumballs?
About 40% of Jayden's texts are to his brother. 14. If Jayden sent 1500 texts last month, about how many did he send to his brother?
A new cold medication claims that, on average, individuals who take the medication recover within 5 days. Dr. Nelson believes the recovery time is longer. She surveys 31 people with colds who take the medication. She finds that their recovery time, in days, is as follows: 7, 5, 4, 8, 5, 5, 4, 4, 5, 5, 6, 4, 4, 5, 4, 7, 5, 7, 4, 6, 4, 3, 5, 7, 8, 4, 7, 4, 6, 4, 6 Perform a hypothesis test using a 9% level of significance. Step 1: State the null and alternative hypotheses. H.: pv >v (So we will be performing a right-tailed Vv test.) Step 2: Assuming the null hypothesis is true, determine the features of the distribution of point estimates using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are t-distributed v with distribution mean and distribution standard deviation Step 3: Find the p-value of the point estimate. P( 2v = P(tv 2v %3D p-value = Step 4: Make a Conclusion About the null hypothesis. Since the p-value = = a, we do not reject the…
Suppose the proportion of all college students who have used marijuana in the past 6 months is p = 0.40. In a class of 125 students that are representative of all college students, would it be unusual for the proportion who have used marijuana in the past 6 months to be less than 0.34? Explain how you made your decision.
Please check answers 1; 0.351 2; 0.060 3;0.205 4; 0.172
Please help answering this one:
In a sample of 169 students, 16 said they have donated blood. What percent of the students have donated blood?
Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41, 47, 25, 14, 29 What is the percentage of these cars with a fuel efficiency less than 40 mpg?
During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. 14+ 12 10 0.5 1.5 2.5 3.5 4.5 5.5 65 7.5 = items over 10 What is the frequency of times the limit was exceeded by at least 3 items? ans =
I can't understand why the data is the percentage of surveyed parents.
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Can you identify 3 statistical anomalies/issues in the following figure. A limit of 75 words apply to your response.